心悸、失眠、汗出者，当选用（）
A.朱砂
B.磁石
C.琥珀
D.酸枣仁
E.柏子仁
参考答案：D
You should comply ______ the terms of the Agreement.
A. for B. in C. to D. with
空气中氧气的体积分数约是（）.
A.28%
B.21%
C.94%
D.3%
